Pump-rod elevator



April 21, 1925. 1,534,089

R. M. SHEARER PUMP BUD ELEVATOR.

F iled Oct, 2. 1924 I i lvac 2 Sheets-Sheet 1 April 21, 1925.

1,534,089 R. M. SHEARER PUMP ROD ELEVATOR Filed Oct. 2. 1924 2 Sheets-S heet 2 ROSE ILI. SFEAREB, OF LA flit-550R, TEXr'tS, ASSIGNOR BQW'EEJ, EU? EA IEEYQB,

F OIIEJiALI-F TO HERMON I.

IP'UMEBOD ELLE-VATGFM Application filed @ctober 2, 1924. Serial No. 741159,

To all 107mm it may concern:

Be it known that i, linen ll'i. Srr imam citizen of the United tes rcsidi at La Pryor 1n the county or iavalla andrState of Texas, have n uted certain new and usei'ul Tmprovemen r in a Pump-Roi illovator, of which the :tollowing is a specrtlca tion.

This invention relates to improvements i elevators for pump rods casings and the like.

An important object or" the invention is to provide device for raisino; or lowering pump rods, casings and the like in wells.

A further object of the invention is tlie provision of an elevator which will auto- 'matically release the pump rod who the same is forced upwardly.

A still further object of the invention the provision of an elevating; device of this character which may be employed to rotate the pump rod or the like. and separate the same at the joints.

A still. further object of the invention is the provision 01"- an elevator of this character which is comparatively simple in construction, very durable and QiilCiEf-Gi] for this purpose.

Other objects and advantages of this invention' willbe apparent during the course of the following description.

In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same:

Figure 1 is a perspective view showing my improved. device mounted upon a pump rod ofa well,

Figure 2 is a side elevation of my im proved elevator parts being broken away to show the interior construction,

Figure 3 is a irontelevation of the same, Figure i is a rear elevation of the same, and

Figure 5 is a transverse sectional view taken on the line5'5 of Figure 2.

In the drawings, wherein for the purpose oi illustration is shown the preferred embodiment 01 my invention, the numeral generally indicates a common form of derrick usually employed in well dig operation. Extending upwardly throrgh the cenw ter of the derrick is a pump rod 11 com posed of a plurality of sections.

rteterring more particularly to my imupper eatremity of the beam 12 carries secured to the connecting link 16 which is pivotally Bi movable jaw member 18 is pivotally beam 12 by means of a pin 17.

connected to the lower portion of the beam 12, the rear portion of the member 18 being provided with a slot 19 permitting insertion of the loop 10 of the beam 12. A pivot pin 20 is secured through the rear portion of the m her 18 and loop 15 formed on the beam, per itting rotationof the jaw member 18 in rela ion to the beam 12. The member comprises apair of parallel extension bars 21, the forwaro extremities thereof tapering and being curved downwardly somewhat as shown at 2 A. longitudinal slot 23 formed between the extension bars 21 is adapted to receive the pump rod or casing. The rear portion oi? the movable jaw member 18 is somewhat heavier than the extension bars, thus forming a shoulder 24- near the extremity oi the slot 23.

A substantially U-shaped bracket 25 is pivotally connected to the beam 12, the upper extremity of the bracket 25 being provioco with openings adapted to receive a pivot pin 26 inserted through a suitable opening in the central portion of the beam 12 and the openings formed in the extreme ends of the bracket The lower portion of the bracket 25 is substantially wider than the upper portion as shown at 26, enabling the bracket to engage the jaw member 18 As shown in Figure 2, the bracket 25 when positioned about the j aw 18 retains the same substantially right angles to the main beam 12 thereby readily supporting a pump rod or the like.

A trip plate 27 is pivotally mounted in the intermediate portion of the U-shaped bracket 25 his plate being adapted to reta .1 the ti -shaped bracket in position durthe operation of the elevator and to permit the to be automatically released'upsides of the trip plate and engage suitable openings formed in the; U-shape-d cket 25. The lower portion of the tr. p; 1: ate is slightly bent as'shovr'n at 29 enabling this extremity to readilyeugage the shoulder-2i and limit movement oi the bracket The upper extremity is also p rwided with ax angular er-itension 29 forming" a guard inngcontact of the trip plate by the sucker rod; t It is to he notedthat a "sl "formed near the extremityo'f we oulder 31 is e slotQS, this V simulate reducingthe Width 01. the slot hear "the extremity and permit-ting engagement of "is illustrated in'the drawings, it maybe 7 readily conceived that a plurality of these shoulders may be formed upon the GSi'QllF-zl bars 21 to permit en' 'agement oi carious "sizeroos. The'priiicipal purpose of these shoulders to enable the positioning of the jaw member "upon the reduced extension of sucker rods'and the like and'to' engage the same-tightly 'ehough to permitrotation of the same for 'couhection or separation of the v sections. 7

"In use, inf {improved elevator is cspee' sprite-tee assented. 1 Tlieee,elevators are supported lay "cables orthe like connecting H lilll theflrotatahle hid -s16, the

up er eftremi'ty of the cable or dieing mouhted upon pulleys a nd op 1 by means ofn'iotors or the like. 'One' of the ele at rs i, ,1mv ;a1e-1 and secured uponthe sucker roda This is'aecoi'np'lished by in ming' the "eit'ension" bars 2-1 about the redueed V neck of theirod 'i miiiedi'ately' h e uea'th the" collar. ,the u shaped b'racli tioned ahoutthe extension bars and loci the ele't a tors, *VVlien' it is desired to i y the sueker "red from thawed the elevator drau 'n upwardly uiitil the next joint appears above"the fioor-hoard,fat which time the sec- 'ond elevator is positioned below this joint. The s'econd or lower elevator is positioned about thereduced neck of the second section in at open'position as shown in Figure l, the extension bars 21. forming the jaw ;memher, and engaging the neck portion of the sucker rod and preventin the loner-section, One of the ele; then held stationaryfivhile the other tatedact iw' as awr'ench member and disenth uppr sucker rod steam-1.,

After the uppersection has been dis ionors is inligure 2, and may be employed to repeated until all the sections comp the sucker rod have been withdrawn 1101'!) a plurahty'of rods, as,although one shoulder that this device Will efiectively prevent ac 'ci lental displacement of the rod duringthe operation and will securely retain the rod until the elevators have been released.

et heilig'then 'posipivoted to thesrid beam aild adapted tore movement of is ro f for automatically releasing'ihe said pivoted nected it may be readily released from the elevator by forcing: the sectioh upwardly and operating the trip plate causing the U- shaped bracket to become disr the lower end of the beam 12 upon upward movement of the se-utiom that: we ing the section. The lower elevator thou swung over into the locked position as? the next sectiom after Which the operati the Well. 7 H r i These elevatorswill enable sucker rods andthe like to he raised or lowered with great elliciency and in less time than the operation can be accomplished with elevators now commonly employed. It is obvious t is'to be uhderstood that the form of my invei'ition herewith shown and descr bed 1s to he l-alien as the preferred example of the "same; and that 'various changes as to the v shape, size, and arrangement of parts may i bet-estimate without departing fromthe 't "offthe fini ention or the scope-of the -ed claims.

Hating thus "descriheddny invention, I claim: I i

1. A de ice of the "character described coiiipiising a inain supportin beam, a jaw member pivotally connected to the said beam, bracket "pivoted to the beam member and adapted to retain'the jaw member in a horizontal po'sitioiuand means for automatically a releasing the said jaw member.

2 A device of the character described "comprisin a main supporting beam, [a U- shaped jaw member pivotally connected to the lower portion of the sald beam, a'hracket tain thejaw member in a horizontalposition, and a trip plate mounted upon the bracket for automatically releasing the same.

3. A device of the character described,

comprising a main supporting beam, a link memher mounted onthe upper portion of the said beam, a rod orpipe jaw pix otally mounted "on the lower portion of the said beam, a bracket adapted to engage the jaw in a closed position pivoted to the said beam, a trip plate'p'itotally mounted on the intermediate portionol the hracket, and means j aw member.

" 4; A11 elevator-comprising an'a t p." 130 rods, a jaw supporting bracket pivotally) connected to the intermediate portion of the beam, a trip plate pivoted to the bracket vmember and adapted toautomatically re lease the same, and a connecting link member pivotally connected to the upper portion of the said beam.

5. A pump rod elevator comprising an arcuate supporting beam, a loop formed on the lower portion of the said beam, and aconnecting link pivotally mounted on the upper extremity of the said beam; a- U-shaped jaw member comprising a pair of extension bars, the rear portion of: the jaw having a slot adapted to receive the loop formed on thelower portion of the beam, a pivot pin mounted through the said slotted end of the jaw and adapted to engage the loop formed on the beam, and a shoulder formed on one extremity of the sald aw member; a

substantially U-shaped bracket having diverging leg members, the upper portion of the said bracket pivoted to the intermediate portion of the said beam, the lower portion of the bracket being of sufficient width to engage the jaw member when in the horizontal position; and a trip plate having angular bent extremities pivotally mounted upon the intermediate portion of the said U-shaped bracket, the said trip plate being adapted to disengage the bracket from the jaw member upon upward movement of the pump rod carried by the elevator.

In testimony whereof, I have afiixed my signature in the presence of two witnesses.

ROSE M. SHEARER.

Witnesses DWIGHT D. CHAPIN J. W. ADAMS. 

